package com.mxm.java;

public class StackTest {
    public static void main(String[] args) {
        StackTest stackTest = new StackTest();
        stackTest.methodA();

    }
    public  void methodA() {
        int i=10;
        int j=20;
        methodB();
    }
    public  void methodB() {
        int k=30;
        int m=40;
    }

}
